Patents by Inventor Yasuyuki Kita
Yasuyuki Kita has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20120208978Abstract: An electrically conductive polymer obtained by oxidative polymerization of a heterocycle-containing aromatic compound as a monomer, wherein the heterocycle-containing aromatic compound is represented by the formula: A-B. In the above formula, A represents a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; B represents a substituted or unsubstituted hydrocarbon aromatic ring group, a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; the ring represented by A and the ring represented by B are directly linked; however, A and B represent structures that are different from each other. The compound can be produced by a coupling reaction using a hypervalent iodine reactant.Type: ApplicationFiled: April 24, 2012Publication date: August 16, 2012Applicant: NAGASE CHEMTEX CORPORATIONInventors: Yasuyuki KITA, Toshifumi DOHI, Koji MORIMOTO, Yoshiyuki MORITA, Tetsuya HOSOMI, Setsuko ISHIOKA
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Publication number: 20110190461Abstract: A heterocycle-containing aromatic compound represented by the formula: A-B, and an electrically conductive polymer obtained by oxidative polymerization of the heterocycle-containing aromatic compound as a monomer are provided. In the above formula, A represents a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; B represents a substituted or unsubstituted hydrocarbon aromatic ring group, a substituted or unsubstituted thiophene ring group, or a substituted or unsubstituted pyrrole ring group; the ring represented by A and the ring represented by B are directly linked; however, A and B represent structures that are different from each other. The compound can be produced by a coupling reaction using a hypervalent iodine reactant.Type: ApplicationFiled: September 10, 2008Publication date: August 4, 2011Applicant: NAGASE CHEMTEX CORPORATIONInventors: Yasuyuki Kita, Toshifumi Dohi, Koji Morimoto, Yoshiyuki Morita, Tetsuya Hosomi, Setsuko Ishioka
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Patent number: 7846972Abstract: The present invention relates to multimeric oleamide derivatives having connexin 26 inhibitory activities and embraces the dimer oleamide derivatives represented by the following formula (1) or a pharmacologically acceptable salt thereof: where n denotes an integer of 3, 5, or 8. The novel oleamide derivatives of the present invention can be used not only as research reagents, but also in a wide industrial field because they exhibit useful bioactivities such as cancer metastasis/growth inhibition. Thus they have various applications, such as in medicines, supplements, and functional foods, in addition to cancer-preventive and cancer-therapeutic drugs.Type: GrantFiled: November 1, 2005Date of Patent: December 7, 2010Assignees: The New Industrial Research Organization, Osaka UniversityInventors: Hiroshi Nojima, Yasuyuki Kita
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Patent number: 7677121Abstract: In an apparatus for measuring shapes of both sides of a plate, a measuring apparatus body includes a reference plane of a longitudinal surface plate disposed in an almost vertical state at one end on a metallic bed, a holding mechanism for holding a plate to be measured in almost parallel therewith, and a displacement gauge scanning column. The displacement gauge scanning column includes a first air slide for mounting a first (second) displacement gauge and a second air slide for mounting a third displacement gauge, and is moved in a horizontal axis direction along a pair of V grooves. Moreover, the first (second) air slide is moved in a vertical axis direction. A shape of one of plate surfaces of the plate to be measured is measured by the scan of the first (second) displacement gauge, and at the same time, a shape of the other surface of the plate surface is measured by the scan of the third displacement gauge.Type: GrantFiled: August 7, 2006Date of Patent: March 16, 2010Assignee: Toshiba Kikai Kabushiki KaishaInventors: Shigetaka Akiyama, Shinichi Tanaka, Takanobu Akiyama, Katsunobu Ueda, Yasuyuki Kita
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Publication number: 20080089924Abstract: The present invention relates to multimeric oleamide derivatives having connexin 26 inhibitory activities and embraces the dimer oleamide derivatives represented by the following formula (1) or a pharmacologically acceptable salt thereof: where n denotes an integer of 3, 5, or 8. The novel oleamide derivatives of the present invention can be used not only as research reagents, but also in a wide industrial field because they exhibit useful bioactivities such as cancer metastasis/growth inhibition. Thus they have various applications, such as in medicines, supplements, and functional foods, in addition to cancer-preventive and cancer-therapeutic drugs.Type: ApplicationFiled: November 1, 2005Publication date: April 17, 2008Inventors: Hiroshi Nojima, Yasuyuki Kita
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Publication number: 20070184356Abstract: In an apparatus for measuring shapes of both sides of a plate, a measuring apparatus body includes a reference plane of a longitudinal surface plate disposed in an almost vertical state at one end on a metallic bed, a holding mechanism for holding a plate to be measured in almost parallel therewith, and a displacement gauge scanning column. The displacement gauge scanning column includes a first air slide for mounting a first (second) displacement gauge and a second air slide for mounting a third displacement gauge, and is moved in a horizontal axis direction along a pair of V grooves. Moreover, the first (second) air slide is moved in a vertical axis direction. A shape of one of plate surfaces of the plate to be measured is measured by the scan of the first (second) displacement gauge, and at the same time, a shape of the other surface of the plate surface is measured by the scan of the third displacement gauge.Type: ApplicationFiled: August 7, 2006Publication date: August 9, 2007Applicant: TOSHIBA KIKAI KABUSHIKI KAISHIInventors: SHIGETAKA AKIYAMA, SHINICHI TANAKA, TAKANOBU AKIYAMA, KATSUNOBU UEDA, YASUYUKI KITA
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Publication number: 20060058379Abstract: A connexin 26 inhibitor and a cancer metastasis inhibitor have a cis-oxirane structure and a terminal amide structure as represented by the following general formula (1): where R is a hydrogen atom or a hydrocarbon group, X is one of a hydrogen atom, a methansulfonyl group, an ethansulfonyl group, an acetyl group, a trifluoroacetyl group, a hydroxyl group, an alkoxy group and an amino group; m is an integer of from 4 to 10; and n is an integer of from 4 to 7. This compound is a novel cancer metastasis inhibitor which specifically inhibits the function of connexin 26.Type: ApplicationFiled: November 28, 2003Publication date: March 16, 2006Inventors: Yasuyuki Kita, Hiroshi Nojima, Akihiko Ito
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Patent number: 6013826Abstract: A method for an addition reaction with the formation of an additional carbon--carbon bond comprising reacting an .alpha.-halogeno carboxylic acid derivative with an alkene in the presence of a catalyst shown by the general formula (1): ##STR1## wherein R.sub.1 is a lower alkyl group.Type: GrantFiled: April 22, 1998Date of Patent: January 11, 2000Assignee: Waco Pure Chemical IndustriesInventors: Yasuyuki Kita, Atsunori Sano, Takahiro Yamaguchi, Masahisa Oka, Masato Matsugi, Kentoku Gotanda
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Patent number: 5238938Abstract: The novel indole derivatives and salts thereof represented by the general formula (1) ##STR1## possess, for example, an inhibitory effect against superoxide (O.sub.2.sup.-) released from the macrophage cells of guinea pig by stimulation and an anti-albuminuria activity against Masugi nephritis, and are useful in various clinical fields as an agent for preventing and treating diseases and cases associated with the above superoxide radical, for example, autoimmune diseases (e.g. rheumatism), arteriosclerosis, ischemic disease, ischemic encephalopathia, hepatic insufficiency and renal insufficiency, and also as an agent for preventing and treating nephritis.Type: GrantFiled: March 26, 1992Date of Patent: August 24, 1993Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Hitoshi Tone, Seiji Sato, Hideaki Sato, Katsumi Tamura, Shigeharu Tamada, Kazumi Kondo, Tomoyuki Kawaguchi, Yoshimasa Nakano, Yasuyuki Kita, Shuji Akai, Hiromichi Fujioka, Yasumitsu Tamura, Katsuhide Matoba, Youichi Taniguchi, Shinji Nishitani, Satoshi Hayakawa, Toshinori Kaneyasu, Yoshihiko Ito, Masahiro Murakami